Jincheng Civil Defense Tunnel
The Jincheng Civil Defense Tunnel (Chinese: 金城民防坑道; pinyin: Jīnchéng Mínfáng Kēngdào) is a tunnel in Jincheng Township, Kinmen County, Taiwan. == History == After the first and second Taiwan Strait Crisis, the government decided to construct an underground civilian tunnels for protection.
Source: Wikipedia — Jincheng Civil Defense Tunnel (CC BY-SA 4.0)